<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        const age = 18;
        function fn() {
            return 'it';
        }

        const str=`老王${age}${fn()}`;
        console.log(str);


        
    </script>
</body>

</html>